A facile color-tuning strategy for constructing a library of Ir(<scp>iii</scp>) complexes with fine-tuned phosphorescence from bluish green to red using a synergetic substituent effect of –OCH<sub>3</sub> and –CN at only the C-ring of C^N ligand
作者:Yan Jiao、Ming Li、Ning Wang、Tao Lu、Liang Zhou、Yan Huang、Zhiyun Lu、Daibing Luo、Xuemei Pu
DOI:10.1039/c6tc00153j
日期:——
diode (OLED) based on one of the objective complexes displayed a maximum current efficiency of 62.1 cd A−1, an external quantum efficiency of 19.8%, and a brightness of 48 040 cd m−2, implying that high-performance red and blueOLED phosphors as well as libraries of Ir(III) complexes bearing similar molecular platforms may be developed through this –OCH3 and –CN synergetic substitution strategy.
通过简单地将–CN基团和/或–OCH 3基团接枝到C环的间位和/或对位上,可以得到一系列带有类似bis(1,2)分子平台的Ir(III)配合物。 -二苯基-1 H-苯并咪唑基-N,C 2')(III)(乙酰丙酮)铱,但显示出微调的磷光,几乎覆盖了可见光谱的整个窗口,具有109 nm的宽色域范围。借助DFT计算,发现如果C ^ N配体(C环)的C相关芳烃部分对Ir(III)化合物,同时在相对于Ir原子的间位和对位上,在C环上同时引入给电子性-OCH 3和吸电子性-CN基团可能会导致有利的协同取代作用。颜色调整方向。这可能代表了具有理想发射颜色的Ir(III)配合物的简便而有效的分子设计策略。基于一种目标配合物的蓝绿色有机发光二极管(OLED)的最大电流效率为62.1 cd A -1,外部量子效率为19.8%,亮度为48 040 cd m -2,这意味着高性能的红色和蓝色OLED荧光粉以及Ir(III)可以通过这种–OCH
Ring contraction of 1,3-diphenylbenzo[1,2,4]triazinyl radicals to 1,2-diphenylbenzimidazoles
作者:Andrey A. Berezin、Panayiotis A. Koutentis
DOI:10.1039/c3ob42130a
日期:——
Optimized conditions for the reductive ring contraction of benzotriazinyl radicals and related analogues afford benzimidazoles in near quantitative yields.
优化的条件用于苯并三氮唑自由基和相关类似物的还原环收缩反应,可获得近似定量收率的苯并咪唑。
Inhibitors of HCV NS5B polymerase
申请人:——
公开号:US20040142989A1
公开(公告)日:2004-07-22
The present invention provides compounds of Formula I, compositions and methods that are useful for treating viral infections and associated diseases, particularly HCV infections and associated diseases.
1
本发明提供了I式化合物、组合物和方法,用于治疗病毒感染和相关疾病,特别是HCV感染和相关疾病。1
Wolff, Justus Liebigs Annalen der Chemie, 1912, vol. 394, p. 85